.an-popover {
    position: fixed;
    top: 0;
    right: 0px;
    box-shadow: var(--an-box-shadow);
    border-radius: var(--an-border-radius);
    border: var(--an-border);
    background-color: #fff;
    width: max-content;
    max-width: 600px;
    max-height: 300px;
    padding: 20px;
    overflow: hidden auto;
    transition: opacity .3s ease, transform .3s ease;
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.an-popover-enter {
    opacity: 1;
    transform: translateY(0px);
}